Here it is:
I am running on W2K SP4,
I was using my computer out of domain, that time I denied access to Everyone account but not only to Administrator.
After that my computer was switched to our corporate domain. I didnt like it there, all that restrictions :) And I am using various programs and I should configure ISA etc.. to use normally. So I switched from domain off. Now even when I connect to my own computer I cannot delete change remove those files which I have denied to everyone's access. But manually I can take ownership and then grant to everyone etc.. But that would take hours to change all files because I cannot chage it all from root folder.
Thanx in advance.